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-rw-r--r--src/devices/oprom/yabel/biosemu.c7
-rw-r--r--src/devices/oprom/yabel/compat/functions.c7
-rw-r--r--src/devices/oprom/yabel/device.c25
-rw-r--r--src/devices/oprom/yabel/device.h9
-rw-r--r--src/devices/oprom/yabel/io.c13
-rw-r--r--src/devices/oprom/yabel/mem.c16
6 files changed, 49 insertions, 28 deletions
diff --git a/src/devices/oprom/yabel/biosemu.c b/src/devices/oprom/yabel/biosemu.c
index 9cdd0f279b..3a8eea62ed 100644
--- a/src/devices/oprom/yabel/biosemu.c
+++ b/src/devices/oprom/yabel/biosemu.c
@@ -106,6 +106,9 @@ biosemu(u8 *biosmem, u32 biosmem_size, struct device * dev, unsigned long rom_ad
printf("Error: Device Expansion ROM invalid!\n");
return -1;
}
+ biosemu_add_special_memory(0, 0x500); // IVT + BDA
+ biosemu_add_special_memory(OPTION_ROM_CODE_SEGMENT << 4, 0x10000); // option ROM
+
rom_image = (u8 *) bios_device.img_addr;
DEBUG_PRINTF("executing rom_image from %p\n", rom_image);
DEBUG_PRINTF("biosmem at %p\n", biosmem);
@@ -129,7 +132,7 @@ biosemu(u8 *biosmem, u32 biosmem_size, struct device * dev, unsigned long rom_ad
// copy expansion ROM image to segment OPTION_ROM_CODE_SEGMENT
// NOTE: this sometimes fails, some bytes are 0x00... so we compare
// after copying and do some retries...
- u8 *mem_img = biosmem + (OPTION_ROM_CODE_SEGMENT << 4);
+ u8 *mem_img = OPTION_ROM_CODE_SEGMENT << 4;
u8 copy_count = 0;
u8 cmp_result = 0;
do {
@@ -152,7 +155,7 @@ biosemu(u8 *biosmem, u32 biosmem_size, struct device * dev, unsigned long rom_ad
break;
}
clr_ci();
- *(mem_img + i) = c;
+ my_wrb(mem_img + i, c);
}
#endif
copy_count++;
diff --git a/src/devices/oprom/yabel/compat/functions.c b/src/devices/oprom/yabel/compat/functions.c
index c9ef0b7d77..50bc7b9192 100644
--- a/src/devices/oprom/yabel/compat/functions.c
+++ b/src/devices/oprom/yabel/compat/functions.c
@@ -41,13 +41,6 @@ void run_bios(struct device * dev, unsigned long addr)
#if CONFIG_BOOTSPLASH
vbe_set_graphics();
#endif
-
- if (vmem != NULL) {
- printf("Copying legacy memory from %p to the lower 1MB\n", vmem);
- memcpy((void *)0x00000, vmem + 0x00000, 0x400); // IVT
- memcpy((void *)0x00400, vmem + 0x00400, 0x100); // BDA
- memcpy((void *)0xc0000, vmem + 0xc0000, 0x10000); // VGA OPROM
- }
}
unsigned long tb_freq = 0;
diff --git a/src/devices/oprom/yabel/device.c b/src/devices/oprom/yabel/device.c
index b48f1d6dee..dd078c72c6 100644
--- a/src/devices/oprom/yabel/device.c
+++ b/src/devices/oprom/yabel/device.c
@@ -24,8 +24,8 @@
/* the device we are working with... */
biosemu_device_t bios_device;
-//max. 6 BARs and 1 Exp.ROM plus CfgSpace and 3 legacy ranges
-translate_address_t translate_address_array[11];
+//max. 6 BARs and 1 Exp.ROM plus CfgSpace and 3 legacy ranges, plus 2 "special" memory ranges
+translate_address_t translate_address_array[13];
u8 taa_last_entry;
typedef struct {
@@ -209,6 +209,23 @@ biosemu_dev_get_addr_info(void)
}
#endif
+// "special memory" is a hack to make some parts of memory fall through to real memory
+// (ie. no translation). Necessary if option ROMs attempt DMA there, map registers or
+// do similarily crazy things.
+void
+biosemu_add_special_memory(u32 start, u32 size)
+{
+ int taa_index = ++taa_last_entry;
+ translate_address_array[taa_index].info = IORESOURCE_FIXED | IORESOURCE_MEM;
+ translate_address_array[taa_index].bus = 0;
+ translate_address_array[taa_index].devfn = 0;
+ translate_address_array[taa_index].cfg_space_offset = 0;
+ translate_address_array[taa_index].address = start;
+ translate_address_array[taa_index].size = size;
+ /* dont translate addresses... all addresses are 1:1 */
+ translate_address_array[taa_index].address_offset = 0;
+}
+
#ifndef CONFIG_PCI_OPTION_ROM_RUN_YABEL
// to simulate accesses to legacy VGA Memory (0xA0000-0xBFFFF)
// we look for the first prefetchable memory BAR, if no prefetchable BAR found,
@@ -419,7 +436,7 @@ biosemu_dev_init(struct device * device)
// and accessing client interface for every translation...
// returns: 0 if addr not found in translate_address_array, 1 if found.
u8
-biosemu_dev_translate_address(unsigned long * addr)
+biosemu_dev_translate_address(int type, unsigned long * addr)
{
int i = 0;
translate_address_t ta;
@@ -443,7 +460,7 @@ biosemu_dev_translate_address(unsigned long * addr)
#endif
for (i = 0; i <= taa_last_entry; i++) {
ta = translate_address_array[i];
- if ((*addr >= ta.address) && (*addr <= (ta.address + ta.size))) {
+ if ((*addr >= ta.address) && (*addr <= (ta.address + ta.size)) && (ta.info & type)) {
*addr += ta.address_offset;
return 1;
}
diff --git a/src/devices/oprom/yabel/device.h b/src/devices/oprom/yabel/device.h
index dbbd28d5e8..b6ec1e3df8 100644
--- a/src/devices/oprom/yabel/device.h
+++ b/src/devices/oprom/yabel/device.h
@@ -101,15 +101,18 @@ typedef struct {
// device. Needed for faster address translation, so
// not every I/O or Memory Access needs to call translate_address_dev
// and access the device tree
-// 6 BARs, 1 Exp. ROM, 1 Cfg.Space, and 3 Legacy
+// 6 BARs, 1 Exp. ROM, 1 Cfg.Space, and 3 Legacy, plus 2 "special"
// translations are supported... this should be enough for
// most devices... for VGA it is enough anyways...
-extern translate_address_t translate_address_array[11];
+extern translate_address_t translate_address_array[13];
// index of last translate_address_array entry
// set by get_dev_addr_info function
extern u8 taa_last_entry;
+// add 1:1 mapped memory regions to translation table
+void biosemu_add_special_memory(u32 start, u32 size);
+
/* the device we are working with... */
extern biosemu_device_t bios_device;
@@ -117,7 +120,7 @@ u8 biosemu_dev_init(struct device * device);
// NOTE: for dev_check_exprom to work, biosemu_dev_init MUST be called first!
u8 biosemu_dev_check_exprom(unsigned long rom_base_addr);
-u8 biosemu_dev_translate_address(unsigned long * addr);
+u8 biosemu_dev_translate_address(int type, unsigned long * addr);
/* endianness swap functions for 16 and 32 bit words
* copied from axon_pciconfig.c
diff --git a/src/devices/oprom/yabel/io.c b/src/devices/oprom/yabel/io.c
index 88a3570cf4..20340470b0 100644
--- a/src/devices/oprom/yabel/io.c
+++ b/src/devices/oprom/yabel/io.c
@@ -22,6 +22,7 @@
#ifdef CONFIG_PCI_OPTION_ROM_RUN_YABEL
#include <device/pci.h>
#include <device/pci_ops.h>
+#include <device/resource.h>
#endif
#ifdef CONFIG_ARCH_X86
@@ -181,7 +182,7 @@ my_inb(X86EMU_pioAddr addr)
{
u8 rval = 0xFF;
unsigned long translated_addr = addr;
- u8 translated = biosemu_dev_translate_address(&translated_addr);
+ u8 translated = biosemu_dev_translate_address(IORESOURCE_IO, &translated_addr);
if (translated != 0) {
//translation successfull, access Device I/O (BAR or Legacy...)
DEBUG_PRINTF_IO("%s(%x): access to Device I/O\n", __func__,
@@ -231,7 +232,7 @@ u16
my_inw(X86EMU_pioAddr addr)
{
unsigned long translated_addr = addr;
- u8 translated = biosemu_dev_translate_address(&translated_addr);
+ u8 translated = biosemu_dev_translate_address(IORESOURCE_IO, &translated_addr);
if (translated != 0) {
//translation successfull, access Device I/O (BAR or Legacy...)
DEBUG_PRINTF_IO("%s(%x): access to Device I/O\n", __func__,
@@ -276,7 +277,7 @@ u32
my_inl(X86EMU_pioAddr addr)
{
unsigned long translated_addr = addr;
- u8 translated = biosemu_dev_translate_address(&translated_addr);
+ u8 translated = biosemu_dev_translate_address(IORESOURCE_IO, &translated_addr);
if (translated != 0) {
//translation successfull, access Device I/O (BAR or Legacy...)
DEBUG_PRINTF_IO("%s(%x): access to Device I/O\n", __func__,
@@ -322,7 +323,7 @@ void
my_outb(X86EMU_pioAddr addr, u8 val)
{
unsigned long translated_addr = addr;
- u8 translated = biosemu_dev_translate_address(&translated_addr);
+ u8 translated = biosemu_dev_translate_address(IORESOURCE_IO, &translated_addr);
if (translated != 0) {
//translation successfull, access Device I/O (BAR or Legacy...)
DEBUG_PRINTF_IO("%s(%x, %x): access to Device I/O\n",
@@ -354,7 +355,7 @@ void
my_outw(X86EMU_pioAddr addr, u16 val)
{
unsigned long translated_addr = addr;
- u8 translated = biosemu_dev_translate_address(&translated_addr);
+ u8 translated = biosemu_dev_translate_address(IORESOURCE_IO, &translated_addr);
if (translated != 0) {
//translation successfull, access Device I/O (BAR or Legacy...)
DEBUG_PRINTF_IO("%s(%x, %x): access to Device I/O\n",
@@ -395,7 +396,7 @@ void
my_outl(X86EMU_pioAddr addr, u32 val)
{
unsigned long translated_addr = addr;
- u8 translated = biosemu_dev_translate_address(&translated_addr);
+ u8 translated = biosemu_dev_translate_address(IORESOURCE_IO, &translated_addr);
if (translated != 0) {
//translation successfull, access Device I/O (BAR or Legacy...)
DEBUG_PRINTF_IO("%s(%x, %x): access to Device I/O\n",
diff --git a/src/devices/oprom/yabel/mem.c b/src/devices/oprom/yabel/mem.c
index d55ae05445..8ca42b0e90 100644
--- a/src/devices/oprom/yabel/mem.c
+++ b/src/devices/oprom/yabel/mem.c
@@ -21,6 +21,10 @@
#if !defined(CONFIG_YABEL_DIRECTHW) || (!CONFIG_YABEL_DIRECTHW)
+#ifdef CONFIG_PCI_OPTION_ROM_RUN_YABEL
+#include <device/resource.h>
+#endif
+
// define a check for access to certain (virtual) memory regions (interrupt handlers, BIOS Data Area, ...)
#if CONFIG_X86EMU_DEBUG
static u8 in_check = 0; // to avoid recursion...
@@ -195,7 +199,7 @@ u8
my_rdb(u32 addr)
{
unsigned long translated_addr = addr;
- u8 translated = biosemu_dev_translate_address(&translated_addr);
+ u8 translated = biosemu_dev_translate_address(IORESOURCE_MEM, &translated_addr);
u8 rval;
if (translated != 0) {
//translation successfull, access VGA Memory (BAR or Legacy...)
@@ -227,7 +231,7 @@ u16
my_rdw(u32 addr)
{
unsigned long translated_addr = addr;
- u8 translated = biosemu_dev_translate_address(&translated_addr);
+ u8 translated = biosemu_dev_translate_address(IORESOURCE_MEM, &translated_addr);
u16 rval;
if (translated != 0) {
//translation successfull, access VGA Memory (BAR or Legacy...)
@@ -278,7 +282,7 @@ u32
my_rdl(u32 addr)
{
unsigned long translated_addr = addr;
- u8 translated = biosemu_dev_translate_address(&translated_addr);
+ u8 translated = biosemu_dev_translate_address(IORESOURCE_MEM, &translated_addr);
u32 rval;
if (translated != 0) {
//translation successfull, access VGA Memory (BAR or Legacy...)
@@ -341,7 +345,7 @@ void
my_wrb(u32 addr, u8 val)
{
unsigned long translated_addr = addr;
- u8 translated = biosemu_dev_translate_address(&translated_addr);
+ u8 translated = biosemu_dev_translate_address(IORESOURCE_MEM, &translated_addr);
if (translated != 0) {
//translation successfull, access VGA Memory (BAR or Legacy...)
DEBUG_PRINTF_MEM("%s(%x, %x): access to VGA Memory\n",
@@ -366,7 +370,7 @@ void
my_wrw(u32 addr, u16 val)
{
unsigned long translated_addr = addr;
- u8 translated = biosemu_dev_translate_address(&translated_addr);
+ u8 translated = biosemu_dev_translate_address(IORESOURCE_MEM, &translated_addr);
if (translated != 0) {
//translation successfull, access VGA Memory (BAR or Legacy...)
DEBUG_PRINTF_MEM("%s(%x, %x): access to VGA Memory\n",
@@ -411,7 +415,7 @@ void
my_wrl(u32 addr, u32 val)
{
unsigned long translated_addr = addr;
- u8 translated = biosemu_dev_translate_address(&translated_addr);
+ u8 translated = biosemu_dev_translate_address(IORESOURCE_MEM, &translated_addr);
if (translated != 0) {
//translation successfull, access VGA Memory (BAR or Legacy...)
DEBUG_PRINTF_MEM("%s(%x, %x): access to VGA Memory\n",
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-27 14:49:41 +0000